public class Jiaoshi extends Person {



    private Kecheng[] kecheng;

    public Jiaoshi() {
        kecheng = new Kecheng[3];
    }

    public Jiaoshi(int Id, String Name, String sex) {
        this.Id = Id;
        this.Name = Name;
        this.sex = sex;
        kecheng = new Kecheng[3];
    }
}

